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點擊外部按鈕我想選擇選擇按鈕的第一個選項,如果未選中。Vue js在外部按鈕點擊選擇選項
<select name="shareFrequency" class="default-input" v-model="frequency>
<option value="">Select frequency</option>
<option v-for="frequency in frequencies" :value="frequency"/>{{ frequency.label }}</option>
</select>
<button id="SelectButton" onclick="selectfirst(this)" type="button">Select frequency</button>